Pin extracting and replacing tool



` 7/MJMMMQM/ N., 339, QE., W. M. WMQMLER PIN EXTRAC'I'ING AND REPLAGINGTOOL Filed Nov. 14, 1922 2 shams-Smm 1 oct. 3o, 1923. 1,472,349?

W. H. WINCHLER PIN EXTRAC'IING AND REPLACINGTOOL Filed Nov. 14. 1922 2swam-sheet a.

/ l Ik ATTORNEY.

Patented Clot. 30, lfliii.

UNITED STATES lavata 'WILLIAM I-I. "WINCIILER, 0F ST. JOSEIH, MISSOURI.

PIN EXTRACTING .AND REPLACING TOOL.

Application filed November 3 4-, 1922.

To all whom may concern:

Be it known that I, WILLIAM H. Tirion- Lnn, a citizen of the UnitedStates, residing` at St. Joseph, in the county ot Buchanan and State oicMissouri, have invented certain new and usefulImprovements in PinExtracting and Replacing Tools, of which the 'following is aspecication.

T he present invention relates to tools 'tor extracting` pins, suoli asthose usually e1nployed in valve stems for retaining, the usual springseat upon the stem, and has for the primary object thereoi", theprovision of such a device that is highly efficient ot purpose,comparatively simple ot construction, and inexpensive of manufacture.

With these general objects in view and others that will appear as thenature of the invention is better understood, the same consists in thenovel construction, combination, and arrangement ot parts herein at'termore fully described, :illustrated in the acromipanyingdrawings, andpointed out in the appended claim.

.l'n the drawings 'forming a part ot this application, and in which likedesignatingV characters reifer to corresponding parts, through theseveral views:

.Figure l. is a plan view ot the tool constructed in accordance with.the present invention.

Figure 52 is a longitudinal sectional view upon the line --2 ot Figure1.

Figure P is a perspective view oi" the operating rod fior controllingthe movement ot the `grasping.;r iiugers ot the tool.

Figure 4- is a view similar to llipure l, but showing the pin engaging:lingers tightly surimindiiur one end ot a i. in. and

Figure a cross sectional view ou the line 55 of Figure jl..

Referrinn particularly to the drawings, my device comprises a relativelyelongated tubular member l, split at a point inwardly of the outer endthereof as at 2. This split end of the tube provides relatively flatspring jaw members 3, which jaw members Serial No. 600,970.

are normally swung outward in a position as shown in Figure l. The outerend of each or' the jaw members are so formed as to provideconcavo-convex finger ends 4, the concaved surface oi which areroughened at as shown in Figure 2.

Upon the opposite end of the tube l, there is positioned an open handle6, which has upon the t'ront wall thereoi, a sleeve adapted to engageover the end ot' the tube l to be there secured by rivets or the like 8.illidably arranged within the tube l, is an ann'ular or other suitablyshaped rod 9, the i'orward end of which extends between the springarms3, and rigidly carries thereon an oblong' plate l0. As in Figures S and5, this plate has adjacent its opposite ends, vertical slots l1 forallowingl the arms 3 to entherethrough whereby any movement of the rodf) within the tube will occasion a movement oi? the arms 3 toward oraway it'ronx each other iior similarly moving the pin grasping fingersil.

Upon the upper side o'l thc tube l., and slightly forwardly of thesleeve 7 of the handle members 6, the said tube is slotted at l2 forreceivingr therethrough the shank '1,3

oli an operating plate leiA upon or otherwise secured adjacent the innerend oi the rod l), lor permitting; oi movement oi the rod within thetube l by the operator.

From the above description, it will be readily apparent that whenever itis desirable to remove the pin such as A. in 'Figure Il, i'roui the stemof a valve, the tool with the arms 1% open as in Figure l is broughtinto meut with the pin ,A and the operator i the rod Qwithin the tubethrough the instrumentality oi the operati plaie 14;. slides the slottedplate 'l0 forwardly upon the arms 3 tor consequently rigidly enclosu jjthe curved fingers 'l upon the pin., whereby the same may beadvantageously removed 'from the valve stem. l

llVhile it is believed that from the toregoing description, the natureand advantages of the invention will be readily ap-` parent, I desire tohave it understood thatl I do not limit myself to what is herein shownand described, and that such Changes Ina-y be resorted to when desiredas fall Within 5 the scope of What is claimed;

niet I claim as new is A device of the character' described comprising atube bifuroetedatl oneend provided with a pair of grasping jaws and`further 10 provided with a slot at its upper end, a

rod siiduble .in the tube, :in 'elruignieil pluie carried by one end ofthe rod und shdubly engaging the Jaws, a laterally extending pin carriedat one end of the rod :rnd passing through the slot, and zr grasplngelement Lcarried by the pin.

In testimony whereof I aix my signature. a'

IVILLIAM H. WINCHLER.

